Outline of natural classification of the Trilobites.
Beecher, Charles Emerson, 1856-1904.
Outline of natural classification of the Trilobites. By Charles E. Beecher. - [New Haven, 1897] - p. [89]-106, 181-207 illus. 24 cm.
"From the American journal of science, vol. III, March, 1897."
ca 17001098
Trilobites.
QE821 / .B418
Outline of natural classification of the Trilobites. By Charles E. Beecher. - [New Haven, 1897] - p. [89]-106, 181-207 illus. 24 cm.
"From the American journal of science, vol. III, March, 1897."
ca 17001098
Trilobites.
QE821 / .B418